LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

3

Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form

10

characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material

12

characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure

B

PERFORMING OPERATIONS; TRANSPORTING

32

LAYERED PRODUCTS

B

LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

3

Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form

26

characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids

LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

7

Layered products characterised by the relation between layers, i.e. products essentially comprising layers having different physical properties or products characterised by the interconnection of layers

04

characterised by the connection of layers

12

using an adhesive

14

applied in stripes or other spaced arrangement

B

PERFORMING OPERATIONS; TRANSPORTING

32

LAYERED PRODUCTS

B

LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

5

Layered products characterised by the non-homogeneity or physical structure of a layer

02

characterised by structural features of a layer comprising fibres or filaments

B

PERFORMING OPERATIONS; TRANSPORTING

32

LAYERED PRODUCTS

B

LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

15

Layered products essentially comprising metal

01

all layers being exclusively metallic

B

PERFORMING OPERATIONS; TRANSPORTING

32

LAYERED PRODUCTS

B

LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

29

Layered products essentially comprising paper or cardboard

B

PERFORMING OPERATIONS; TRANSPORTING

32

LAYERED PRODUCTS

B

LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

(EN)METHOD FOR CREATING A CORE OF A STRUCTURAL SANDWICH MATERIAL, AND CORE(FR)PROCÉDÉ DE RÉALISATION D'UNE ÂME DE MATÉRIAU STRUCTURAL SANDWICH ET ÂME

Abstract:

(EN)A core of a structural sandwich material in a compact state comprises a sandwich of sheets having at least two superposed sheets. The core is designed to be transferred into an expanded state in which the sandwich of sheets is stretched in the thickness direction of the sheets to form a cellular structure. Each sheet of the sandwich of sheets has spatially periodic corrugations. A spatial period of the corrugations is strictly smaller than a spatial period of the adhesive strips laid on the sheets. A remainder of the Euclidean division of the spatial period of the adhesive strips by the spatial period of the corrugations is strictly greater than zero.(FR)Une âme de matériau structural sandwich dans un état compact comporte un sandwich de feuilles comprenant au moins deux feuilles superposées. L'âme est apte à être placée dans un état expansé dans lequel le sandwich de feuilles est étiré selon la direction d'épaisseur de feuilles pour former une structure alvéolée. Chaque feuille du sandwich de feuilles présente des ondulations spatialement périodiques. Une période spatiale des ondulations est strictement inférieure à une période spatiale des bandes adhésives disposées sur les feuilles. Un reste de la division euclidienne de la période spatiale des bandes adhésives par la période spatiale des ondulations est strictement supérieur à zéro.